Tricky nasal mass from meek polyp to intricate papilloma: A diagnostic dilemma

Inverted papilloma is a benign epithelial growth arising from the underlying stroma of the nasal cavity and paranasal sinuses. The pathogenesis of this lesion uptil date remains unclear. The tumor is known for its local invasiveness, rapid recurrence and link with malignancy. The recurrence rate of this tumor is usually too high that represents residual disease in most of the cases. Hence, it is mandate that the patient keeps a proper follow up on long term concerns. Here is one such patient, whose nasal mass seemed Antrochoanal polyp clinically but ended up as Inverted papilloma histopathologically.